Connecting device for pipe-elevators.



F. HOLMES. UONNECTING DEVICE FOR PIPE ELEVATORS. APPLICATION FILED JULY 11') 1911,

1 1 Patented Apr Unreal) strATEsP grENT ,OFFICE,

FRANK H. HOLMES, OF OIL CITY, PENNSYLVANIA;

CONNECTING DEVICE FOR IIPiE-ELEVATORS.

' em-e84- To'allaohoml it may concern Bo itkil'own that I, FRANK H. Holmes, a citiZen o'ftheUnited States, resident of Oil City, county of Venango, and State of Pennsylvania .ha ve invented a neivand useful Improvement in Connecting Devices for Pipe-Elevators, of which the following is a specification, the principle of the invention being herein explained and the best mode in lo'which I haveflicontemplated applying that 18, or tubjn oommo pinciple so as to distinguish it from other -ventions'.

l invention relates. to connections for elevators=used-for raising or lowering pipe ,oilwells. These devices are y referred to in the art bythesingle term"elevator;" These connections are ln-practi'ce subjected to great strain, and it is therefore necessary to make the parts ex- .zo l tremely heavy lrF devicef0f this character which may be connection usually amounts to about one thousand ponds, l i v The intact of the invention 13 to prepare readily attached or detached from the pipe,

which Will be economical in its structure andfefiicient in its operation, and which may be dismounted so as to 'be more readily handled and tldnsported.

' similar view slowing the parts in their open position. Fig. 3 isle side elevation of a fragmentaryportion. Fig-Z & is a detail rspective- View of one of the hinge-pins.

The embodiment of my invention as illustreted in the drawing, comprises two main parts, the strap, consisting of that portion which immediately surrounds the pipe or tubing beneath the coupling, and the bails.

This strap consists of two parts, a main strap portion A ahd a secondary strap pop tion A. This main strap portlonis provided with two laterally DIOJECUDg integral end lugs a a which are eahh provided with a Specification of Letters Patent. Application filed July 19, 1911. Serial No. $39,321.

transverse horizontal bore a.

The weight of the entire The said ny'entloll consists of means here disclosed the These-lugs are connected withthe bails B B-which are identical with each other in construction. These bailseach consist of a single bar of metal bent to form a loop and having its lower ends formed with eyes a o The diameter of the bore of these eyes is the same i as that of the holes in the lugs a, and the eyes and lugs are connected with each other by means of removable pins 7) 1). pins 'are preferably secured in place by means of split keys b b. It will therefore be readily seen that to remove the bails, itis merely necessary to remove the split keys b, whereby the pins .b may be readily removed andthe bails thereby detached. This perm ts the bails to be separately handled for :ranspo-tat-ion.

The member A is. cut away at lts ends, as

at a a these cut-away portions forming' Patented Apr. 2, 19,12

seats for lugs a a, formed upon the second provided at both ends of the lnembers A A, so that both these ends overlap,jas will be readily understood. These overlapping por- )ores It a tions are provided with vertical whleh reglster with each other, and are adapted to receive the removable hinge pins 0' C. flhesepins are bent at their upper ends, and are provlded with laterally pro- -ary strap member A. This construction is i jecting lugs c (1r. Depressions a" a. are provided in the upper of the lugs 41 a to receive these lugs c, the depth of the depresslons being madc'equal to the thickness of the lugs. The inwardlyprojecting portionof these lugs in consequence falls directly beneath the couplingof the pipe ortubing,

'when the latter is suspended by the connection. The coupling, therefore, in this )OSltion prevents the accidental removal 0 the pins during the operation of lifting the pipe or tubing. Each of the plus being removable as descrlbed, either one or the other may be dismounted so that the corresponding endof the secondary member A may be swung 'upon its other end as a result of the hinge. structure provided by theabovedescribed construction.

, Bv removin' both the ins thesecondar member-A may be entirely disnlpunted for transportation. I

It will therefore be seen that the above described form of structure permits the entire connection to be disassembled for transportation by separating each hail from the member A, removing both hinge pins, and

3 and connecting said two members; of suit- To provide still further strength at the hinged portions, I furthermore provide the member A with lugs a a, which, when the 1 parts are in a closed position, reject-into recesses a a of the member X. In this manner, a connection 'dismou'ntable in character, ease "of operation, and of great strength, is obtained. 1 Having fully described -my invention, what I claim and desire to secure by Letters Patent is I 1. In a 'connectingdevice for pipe eeva-. tors the combination with a strapndaptedto surround the pipe, and comprising a main member, a secondary member, and m'eans connecting such two members to form two hinges, a part of each of such hin eforming'means bein dismountable, where y said secondary mem er may be swung upon either of such two hinges; of suitable bails connected with said strap. 1 v

2. In a connecting device for pipe elevators, the combination with a strap adapted to surround the pipe, andcomprising a main member, a secondary member, the ends of saidtwo members being formed to overlap and provided \vith'registering bores, and removable hinge-pins seated in said bores able bails connected with suidstrap.

3. In a connectlng devlce tor pipe cleva to surroundthe pipe, and comprising a such two members formed to overlap, such overlapping portions heing'provided with registering bores, and fa; removable hinge-pin seated insaid bores 'andprovided ing lug adapted to prefectbeyond such bore of suitable bails connected 'with said strap.

4. In a connecting device for pipe-elevators, the combinationofj-a stra -member 50 forming substantially one-half o the entire strap, and formedateach'offits ends with a. projecting lug; a second strap-member mounted upon is'aid first-named strap therewith at each end'; part of such hinge second-named member may swungupon either of such hinge connections,-or such member may be removed ..enti rely' and bails 0- clisconnectibly mounted upon sai lugs.

5. In a connecting device 'ior pi e elevag tors, the combi ation of a strap'a apted to surround the p iipe and provided with two laterally proj ting lugs, each such lug'b- 65 ing provide with atijansverse bore; -a bail consisting of a single barofmetal bent to form a 100 and rcvided with two eyes at its free e ds; an removable 'pins passing, through said eyes and the bor e$ o f said lugs 70 ms ii i h 10th d f 1511" gn y 'FRANK i HOPEIIE Attested by- I p O'rroS'. JEssnN,

tors, the combination with a strap adapted MAX KURTH. .i

member,'together with a secondary member,

at its outer portion with-a laterally projectmember and having ahingedconnection connection being removableimwhereby said V 

